![Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com](https://images.monoprice.com/productlargeimages/385431.jpg)
Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com
![Subgrade day...again! I took no one's advice and kept the beat up Monolith 15 and purchased another on sale this week. : r/hometheater Subgrade day...again! I took no one's advice and kept the beat up Monolith 15 and purchased another on sale this week. : r/hometheater](https://preview.redd.it/baktx5yep2a71.jpg?width=640&crop=smart&auto=webp&s=27886697ed9f6af77f58e6e5d54f67cc0b6dff43)
Subgrade day...again! I took no one's advice and kept the beat up Monolith 15 and purchased another on sale this week. : r/hometheater
![Monolith by Monoprice M-212 Dual 12in THX Certified Ultra 1000 Watt Powered Subwoofer - Monoprice.com Monolith by Monoprice M-212 Dual 12in THX Certified Ultra 1000 Watt Powered Subwoofer - Monoprice.com](https://images.monoprice.com/productlargeimages/385443.jpg)
Monolith by Monoprice M-212 Dual 12in THX Certified Ultra 1000 Watt Powered Subwoofer - Monoprice.com
![Wired Subwoofer Speakers, Plug Play 2.1 USB Powered Stereo Multimedia Speaker with RGB LED Light for PC Laptop, 3 Volume Control Knobs(New Black) : Electronics - Amazon.com Wired Subwoofer Speakers, Plug Play 2.1 USB Powered Stereo Multimedia Speaker with RGB LED Light for PC Laptop, 3 Volume Control Knobs(New Black) : Electronics - Amazon.com](https://m.media-amazon.com/images/I/31n5WzKRMAL.jpg)
Wired Subwoofer Speakers, Plug Play 2.1 USB Powered Stereo Multimedia Speaker with RGB LED Light for PC Laptop, 3 Volume Control Knobs(New Black) : Electronics - Amazon.com
![Monolith by Monoprice M-212 Dual 12in THX Certified Ultra 1000 Watt Powered Subwoofer - Monoprice.com Monolith by Monoprice M-212 Dual 12in THX Certified Ultra 1000 Watt Powered Subwoofer - Monoprice.com](https://images.monoprice.com/productlargeimages/385441.jpg)
Monolith by Monoprice M-212 Dual 12in THX Certified Ultra 1000 Watt Powered Subwoofer - Monoprice.com
![Monolith by Monoprice M12-S 12" THX Certified Sealed 500 Watt Powered Subwoofer (Open Box) - Monoprice.com Monolith by Monoprice M12-S 12" THX Certified Sealed 500 Watt Powered Subwoofer (Open Box) - Monoprice.com](https://images.monoprice.com/productlargeimages/396931.jpg)
Monolith by Monoprice M12-S 12" THX Certified Sealed 500 Watt Powered Subwoofer (Open Box) - Monoprice.com
![Amazon.com: FECAMOS Bluetooth Speaker, Subwoofer Delayless Wireless Speaker Rechargeable Hands Free Calling for Cellphone for PC(Yellow Wood Grain (Export)) : Electronics Amazon.com: FECAMOS Bluetooth Speaker, Subwoofer Delayless Wireless Speaker Rechargeable Hands Free Calling for Cellphone for PC(Yellow Wood Grain (Export)) : Electronics](https://m.media-amazon.com/images/I/61AIoz3MP+L._AC_UF894,1000_QL80_.jpg)
Amazon.com: FECAMOS Bluetooth Speaker, Subwoofer Delayless Wireless Speaker Rechargeable Hands Free Calling for Cellphone for PC(Yellow Wood Grain (Export)) : Electronics
![Monolith by Monoprice 16in THX Certified Ultra 2000-Watt Powered Subwoofer (Matte Black/Painted) - Monoprice.com Monolith by Monoprice 16in THX Certified Ultra 2000-Watt Powered Subwoofer (Matte Black/Painted) - Monoprice.com](https://images.monoprice.com/productlargeimages/420311.jpg)
Monolith by Monoprice 16in THX Certified Ultra 2000-Watt Powered Subwoofer (Matte Black/Painted) - Monoprice.com
![Amazon.com: FECAMOS Bluetooth Speaker, Subwoofer Delayless Wireless Speaker Rechargeable Hands Free Calling for Cellphone for PC(Yellow Wood Grain (Export)) : Electronics Amazon.com: FECAMOS Bluetooth Speaker, Subwoofer Delayless Wireless Speaker Rechargeable Hands Free Calling for Cellphone for PC(Yellow Wood Grain (Export)) : Electronics](https://m.media-amazon.com/images/I/61AIoz3MP+L.jpg)
Amazon.com: FECAMOS Bluetooth Speaker, Subwoofer Delayless Wireless Speaker Rechargeable Hands Free Calling for Cellphone for PC(Yellow Wood Grain (Export)) : Electronics
![Amazon.com: Universal Car Speaker, 2 Pcs Excellent Voice Performance Tweeters Good Voice Resolution for Car Audio Systems : Electronics Amazon.com: Universal Car Speaker, 2 Pcs Excellent Voice Performance Tweeters Good Voice Resolution for Car Audio Systems : Electronics](https://m.media-amazon.com/images/I/61OVF0NInWL.jpg)
Amazon.com: Universal Car Speaker, 2 Pcs Excellent Voice Performance Tweeters Good Voice Resolution for Car Audio Systems : Electronics
![Amazon.com: Bluetooth Speaker, Portable Wireless HiFi Stereo Outdoor Subwoofer, Lossless Music Transmission Bass Speaker, Compatible with Smartphone, Tablet, PC, MP3(Black Gold) : Electronics Amazon.com: Bluetooth Speaker, Portable Wireless HiFi Stereo Outdoor Subwoofer, Lossless Music Transmission Bass Speaker, Compatible with Smartphone, Tablet, PC, MP3(Black Gold) : Electronics](https://m.media-amazon.com/images/I/71t4CjYSTYL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Bluetooth Speaker, Portable Wireless HiFi Stereo Outdoor Subwoofer, Lossless Music Transmission Bass Speaker, Compatible with Smartphone, Tablet, PC, MP3(Black Gold) : Electronics
![Amazon.com: Bluetooth Speaker, Retro Subwoofer Wooden Wireless Speaker Surround Sound Bluetooth Speaker with Hands Free Calling Function, for Laptop Cellphone, Memory Card, USB, Aux,(Brown wood grain (export)) : Electronics Amazon.com: Bluetooth Speaker, Retro Subwoofer Wooden Wireless Speaker Surround Sound Bluetooth Speaker with Hands Free Calling Function, for Laptop Cellphone, Memory Card, USB, Aux,(Brown wood grain (export)) : Electronics](https://m.media-amazon.com/images/I/61pT1Vf+vGL.jpg)
Amazon.com: Bluetooth Speaker, Retro Subwoofer Wooden Wireless Speaker Surround Sound Bluetooth Speaker with Hands Free Calling Function, for Laptop Cellphone, Memory Card, USB, Aux,(Brown wood grain (export)) : Electronics
![Amazon.com: Wired Subwoofer Speakers, Plug Play 2.1 USB Powered Stereo Multimedia Speaker with RGB LED Light for PC Laptop, 3 Volume Control Knobs(New Black) : Electronics Amazon.com: Wired Subwoofer Speakers, Plug Play 2.1 USB Powered Stereo Multimedia Speaker with RGB LED Light for PC Laptop, 3 Volume Control Knobs(New Black) : Electronics](https://m.media-amazon.com/images/I/61poEHIO9CL.jpg)
Amazon.com: Wired Subwoofer Speakers, Plug Play 2.1 USB Powered Stereo Multimedia Speaker with RGB LED Light for PC Laptop, 3 Volume Control Knobs(New Black) : Electronics
![Amazon.com: (2) Rockville RSG15.4 15 3-Way 1500 Watt 4-Ohm Passive DJ/Pro Audio PA Speakers : Musical Instruments Amazon.com: (2) Rockville RSG15.4 15 3-Way 1500 Watt 4-Ohm Passive DJ/Pro Audio PA Speakers : Musical Instruments](https://m.media-amazon.com/images/I/7116BCy3MZL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: (2) Rockville RSG15.4 15 3-Way 1500 Watt 4-Ohm Passive DJ/Pro Audio PA Speakers : Musical Instruments
![Amazon.com: Monolith THX Certified 8in 150-watt Powered Subwoofer, Deep and Powerful Bass, Compact Design, Quick and Easy to Setup, for Home Theater or Gaming Systems : Electronics Amazon.com: Monolith THX Certified 8in 150-watt Powered Subwoofer, Deep and Powerful Bass, Compact Design, Quick and Easy to Setup, for Home Theater or Gaming Systems : Electronics](https://m.media-amazon.com/images/I/21wQt8-1FxL.jpg)
Amazon.com: Monolith THX Certified 8in 150-watt Powered Subwoofer, Deep and Powerful Bass, Compact Design, Quick and Easy to Setup, for Home Theater or Gaming Systems : Electronics
![Amazon.com: Portable Bluetooth Speaker, Subwoofer Wireless Speaker, Graffiti Bluetooth Speaker Karaoke Machine, Vintage Handheld Speaker for Outdoor Use(Black Gold) : Musical Instruments Amazon.com: Portable Bluetooth Speaker, Subwoofer Wireless Speaker, Graffiti Bluetooth Speaker Karaoke Machine, Vintage Handheld Speaker for Outdoor Use(Black Gold) : Musical Instruments](https://m.media-amazon.com/images/I/41vSLCGFvlL.jpg)